5. Labrador Retriever
Their high intelligence and willingness to please make Labrador Retrievers great hunters on the field, ideal companions at home, excellent service dogs to help guide the blind, and successful search-and-rescue partners. These gregarious dogs love just about everyone—kids, adults, strangers, even burglars (they aren’t great watchdogs). They are highly trainable but can be a bit pushy with their affection.